Surface phenomena and hydrodynamic effects on the deposition ofpseudomonas fluorescens
作者:
M. M. Pinheiro,
L. F. Melo,
T. R. Bott,
J. D. Pinheiro,
L. Leitão,
期刊:
The Canadian Journal of Chemical Engineering
(WILEY Available online 1988)
卷期:
Volume 66,
issue 1
页码: 63-67
ISSN:0008-4034
年代: 1988
DOI:10.1002/cjce.5450660109
出版商: Wiley Subscription Services, Inc., A Wiley Company
关键词: biofouling;fouling of metal surfaces;deposition surface effects;biofilm adhesion;density
数据来源: WILEY
摘要:
AbstractBiofilm adhesion to metals (copper, aluminium and brass) was studied at two different velocities and pH values of 7 and 9. Both bacteria and metals showed negative surface charges at those values of pH, which tends to slow down adhesion. Film densities increased with the fluid velocity and were also affected by the pH and by the growth rate of the bacteria. Long duration tests based on heat transfer measurements were run at five different fluid velocities and at pH = 7, showing in general an asymptotic behaviour and a control of deposition by adhesion and growth phenomena.
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